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研究论文

芦荟大黄素1.5阶微分阳极溶出伏安法测定及电化学性质研究

  • 林新华 ,
  • 黄丽英 ,
  • 陈伟 ,
  • 罗红斌 ,
  • 邱彬 ,
  • 李春艳
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  • 福建医科大学药学系,福建医科大学药学系,福建医科大学药学系,福建医科大学药学系,福建医科大学药学系,福建医科大学药学系 福建福州350004 ,福建福州350004 ,福建福州350004 ,福建福州350004 ,福建福州350004 ,福建福州350004

收稿日期: 2001-11-28

  修回日期: 2001-11-28

  网络出版日期: 2001-11-28

Study of Electrochemistry of Aloe-emodin and Determination of It with 1.5th Order Derivative Anodic Stripping Voltammetry

  • LIN Xin hua ,
  • HUANG Li ying ,
  • CHEN Wei ,
  • LUO Hong bin ,
  • QIU Bin ,
  • LI Chun yan
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  • (Dept. of Pharmaceutical, Fujian Medical Univ., Fuzhou 350004,China

Received date: 2001-11-28

  Revised date: 2001-11-28

  Online published: 2001-11-28

摘要

研究了芦荟大黄素在以 0 .1mol/LHAc (pH 2 .89)为支持电解质 ,玻碳电极为工作电极的吸附伏安行为 .结果表明芦荟大黄素存在一个准可逆的双电子转移过程 ,其峰电流Ip 和峰电位Ep 与溶液 pH值有关 .同时还建立了用 1.5阶微分阳极溶出伏安法测定含量的新方法 .在 - 0 .80V(vs.SCE)电位下富集 ,可得一灵敏的微分阳极溶出峰 ,峰电位Ep 为 - 0 .38V ,峰电流Ip 与芦荟大黄素的浓度在 2 .0× 10 - 7~ 8.0× 10 - 6 mol/L范围内成线性关系 ,最低检出限为 1.0× 10 - 7mol/L .该法用于含有芦荟大黄素体系的测定 ,具有简便、快速、准确等优点

本文引用格式

林新华 , 黄丽英 , 陈伟 , 罗红斌 , 邱彬 , 李春艳 . 芦荟大黄素1.5阶微分阳极溶出伏安法测定及电化学性质研究[J]. 电化学, 2001 , 7(4) : 487 -493 . DOI: 10.61558/2993-074X.1442

Abstract

In 0.1 mol/L HAc solution(pH=2.89),the voltammetric behaviours of aloe emodin at a glassy carbon electode has been studied. One pair of current peak of the voltammogram may be attributed to a quasireversible two electron transfer of aloe emodin molecules at the glassy carbon electrode. A new method, the derivative anodic stripping voltammetry, for aloe emodin determination is described. The adsorptive potential of aloe emodin is -0.80V(vs. SCE),while its stripping potential is -0.38V(vs.SCE). The peak current is propotional to the concentration of aloe emodin over the range of 2.0×10 -7 ~8.0×10 -6 mol/L. The method is simple, rapid and reliable for aloe emodin analysis.

参考文献

[1] YeYibin,ZhangXiaohua,LiHan.Anthracencderivativesextracted,separatedandidentificatedfromaloe[J].JournalofChineseNationalFolkMedicine,1999,37:77. [2] MiguelRB ,etal.Comparativeevaluationofaloeverainthemanagementofburnwoundsinguineapigs[J].PlastReconstrSurg,1988,81(3):386. [3] DavisRH ,LeitnerMG .Topicalanti inflammatoryactivityofAloeveraasmeasuredearswelling[J].Jour naloftheAmericanPediatricMedicalAssociation,1987,77(11):610. [4] GaunttCJ ,WoodHJ,McDanielHR ,etal.Aloepolymannoseenhancesanti coxsackievirusantibodytitresinmice[J].PhytotherRes,2000,14(4):261. [5] YuanAxin,KangShuhua,TanLin,etal.ThestudyonthechemicalconstituentsofaloeveraL .varchinesis(Haw)Berg[J].ChineseTraditionalandHerbalDrugs,1994,25(7);339. [6] GuWenxiang,ZuShuqin.CultivationandUtilizationofAloe[M ].Shanghai:ShanghaiSciencePopularitPress,1999.198. [7] GuoQing,LuJin.HPLCdeterminationofanthraquinoneinradixpolygorimultifloriandradixpolygonimulti floripreparata[J].JournaofPharmaceuticalAnalysis,2000,20(5):326. [8] ZongYuyin,YuMantang,ZhuZhiqing,etal.Micellarelectrokineticcapillarychromatographyseparationanddeterminationofchinesetraditionalmedicine severalrheumspecies[J].ActaPharmaceuticaSinica,1995,30(8):594. [9] ZhouJihong,LiReishi,LiuZhihong,etal.HPTLCdeterminationofthreeanthraquinonederivativesofChi neserhubarbinplasma[J].JournalofPharmaceuticalAnalysis,1995,15(6):36. [10] AnsonF .(translatedbyHuangWeizengetal).ElectrochemistryandElectro analyticalChemistry[M ].Bei jin:PekingUniversityPress,1983.14. [11] LavironE .Adsorption,AutoinhibitionandAutocatalysisinPolarographyandinLinearPotentialSweepVoltammetry[J].J .Electroanal.Chem.,1974,52:355. [12] BrodbentAD ,SommermannEF .Thereductionof9,10 anthaquinals.Part2.Polargraphyof2 hydroxy9,10 anthrahydroquinones[J].J .Chem.Soc.(B),1968:519. [13] ZouHong,YuanZhoubin.Investigationonelectrochemicalbehaviorofemodinanditsapplication[J].ActaPharmaceuticaSinica,1997,32(4):310. [14] GaoXiaoxia.PolarographicCatalysisWave[M ].Beijin:SciencePress,1991.
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